Figure shows a smooth track, a part of which is a circle of radius `r`. A block of mass `m` is pushed against a spring of spring constant `k` fixed at the left end and is then released. Find the initial compression of the spring so that the block presses the track with a force `mg` when it reaches the point P, where the radius of the track is horizontal. A. `sqrt((3mgR)/(k))`B. `sqrt((mgR)/(k))`C. `sqrt((2mgR)/(k))`D. None

Figure shows a smooth track, a part of which is a circle of radius `r`

1.	Figure shows a smooth track, a part of which is a circle of radius `r`. A block of mass `m` is pushed against a spring of spring constant `k` fixed at the left end and is then released. Find the initial compression of the spring so that the block presses the track with a force `mg` when it reaches the point P, where the radius of the track is horizontal. A. `sqrt((3mgR)/(k))`B. `sqrt((mgR)/(k))`C. `sqrt((2mgR)/(k))`D. None
Answer» Correct Answer - A

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